81Y6708 IBM 2.53GHz 5.86GT/s QPI 12MB L3 Cache Intel Xeon E5649

81Y6708 Specifications

Intel Xeon E5649 2.53 GHz 6‑Core Server Processor

Manufacturer: Intel
Manufacturer Model: Xeon E5649
Product Line: Intel Xeon 5000 Series
Product Series: Server / Enterprise CPU (Westmere‑EP generation)
Product Type: Micro Processor (Server CPU)
Product Name: IBM / Lenovo Intel Xeon E5649 6‑Core 2.53 GHz Processor (FRU 81Y6708)

KEY FEATURES:

Cores / Threads: 6 / 12

Base Clock Speed: 2.53 GHz

Cache (L3): 12 MB

Cache (L2): 1.5 MB

QuickPath Interconnect (QPI) Speed: 5.86 GT/s

Socket Type: LGA 1366

Instruction Set: 64‑bit

Virtualization Support: Intel VT‑x / VT‑d

Turbo Boost Support: Yes — up to ~2.93 GHz

PERFORMANCE:

Architecture: Westmere‑EP (32 nm process)

Thermal Design Power (TDP): 80 W

Multi‑Core Efficiency: Designed for enterprise server workloads

ENVIRONMENTAL & RELIABILITY:

Designed for enterprise servers and 24×7 operation

ECC memory support typical of Xeon 5600 family

Features Intel 64, Enhanced SpeedStep, Demand Based Switching, Execute Disable Bit

PHYSICAL:

Socket Compatibility: LGA 1366 CPU socket

Typical Processor Dimensions: Standard server CPU package

Weight: ~0.2 kg (~0.44 lbs)